private void Source_OpenOperationCompleted(MediaSource sender, MediaSourceOpenOperationCompletedEventArgs args)
{
// Get the MediaPlaybackItem that corresponds to the MediaSource.
MediaPlaybackItem item = MediaPlaybackItem.FindFromMediaSource(sender);
if (item != null && item.AudioTracks.Count > 0)
{
// The MediaPlaybackItem contains additional information about the underlying media.
string audioCodec = item.AudioTracks[item.AudioTracks.SelectedIndex].GetEncodingProperties().Subtype;
// We can read values from the MediaSource.CustomProperties.
object customValue = null;
sender.CustomProperties.TryGetValue("uri", out customValue);
string uri = (string)customValue;
customValue = null;
sender.CustomProperties.TryGetValue("contentId", out customValue);
string contentId = (string)customValue;
logView.Log($"Opened Media Source with Uri: {uri}, ContentId: {contentId}, Codec: {audioCodec}", LogViewLoggingLevel.Information);
// This extension method in MediaPlaybackItemStringExtensions dumps all the properties from all the tracks.
var allProperties = item.ToFormattedString();
logView.Log($"MediaPlaybackItem nested properties: {allProperties}", LogViewLoggingLevel.Verbose);
// The AdaptiveMediaSource can manage multiple video tracks internally,
// but only a single video track is exposed in the MediaPlaybackItem, not a collection.
}
}
private void Source_OpenOperationCompleted(MediaSource sender, MediaSourceOpenOperationCompletedEventArgs args)
{
// Get the MediaPlaybackItem that corresponds to the MediaSource.
MediaPlaybackItem item = MediaPlaybackItem.FindFromMediaSource(sender);
if (item != null && item.AudioTracks.Count > 0)
{
// The MediaPlaybackItem contains additional information about the underlying media.
string audioCodec = item.AudioTracks[item.AudioTracks.SelectedIndex].GetEncodingProperties().Subtype;
// We can read values from the MediaSource.CustomProperties.
var uri = (string)sender.CustomProperties["uri"];
var contentId = (Guid)sender.CustomProperties["contentId"];
Log($"Opened Media Source with Uri: {uri}, ContentId: {contentId}, Codec: {audioCodec}");
// This extension method in MediaPlaybackItemStringExtensions dumps all the properties from all the tracks.
var allProperties = item.ToFormattedString();
Log(allProperties);
// The AdaptiveMediaSource can manage multiple video tracks internally,
// but only a single video track is exposed in the MediaPlaybackItem, not a collection.
}
}
private void CreateMediaBreaksForItem(MediaPlaybackItem item)
{
if (item != null)
{
// We have two ads that will be repeated.
var redSkyUri = new Uri("http://az29176.vo.msecnd.net/videocontent/RedSky_FoxRiverWisc_GettyImagesRF-499617760_1080_HD_EN-US.mp4");
var flowersUri = new Uri("http://az29176.vo.msecnd.net/videocontent/CrocusTL_FramePoolRM_688-580-676_1080_HD_EN-US.mp4");
// One option is to create a separate MediaPlaybackItem for each of your ads.
// You might choose to do this if each ad needs different reporting information.
// Another option is to re-use MediaPlaybackItems in different MediaBreaks.
// This scenario demonstrates both patterns.
var ad1 = new MediaPlaybackItem(MediaSource.CreateFromUri(redSkyUri));
ad1.Source.CustomProperties["contentId"] = "Ad1_ID";
ad1.Source.CustomProperties["description"] = "Red Sky";
ad1.Source.CustomProperties["uri"] = redSkyUri.ToString();
RegisterForMediaSourceEvents(ad1.Source);
RegisterForMediaPlaybackItemEvents(ad1);
var ad2 = new MediaPlaybackItem(MediaSource.CreateFromUri(flowersUri));
ad2.Source.CustomProperties["contentId"] = "Ad2_ID";
ad2.Source.CustomProperties["description"] = "Flowers";
ad2.Source.CustomProperties["uri"] = flowersUri.ToString();
RegisterForMediaSourceEvents(ad2.Source);
RegisterForMediaPlaybackItemEvents(ad2);
var ad3 = new MediaPlaybackItem(MediaSource.CreateFromUri(redSkyUri));
ad3.Source.CustomProperties["contentId"] = "Ad3_ID";
ad3.Source.CustomProperties["description"] = "Red Sky 2";
ad3.Source.CustomProperties["uri"] = redSkyUri.ToString();
RegisterForMediaSourceEvents(ad3.Source);
RegisterForMediaPlaybackItemEvents(ad3);
// Create a PrerollBreak on your main content.
if (item.BreakSchedule.PrerollBreak == null)
{
item.BreakSchedule.PrerollBreak = new MediaBreak(MediaBreakInsertionMethod.Interrupt);
}
// Add the ads to the PrerollBreak in the order you want them played
item.BreakSchedule.PrerollBreak.PlaybackList.Items.Add(ad1);
item.BreakSchedule.PrerollBreak.PlaybackList.Items.Add(ad2);
// Add the ads to the MidRoll break at 10% into the main content.
// To do this, we need to wait until the main MediaPlaybackItem is fully loaded by the player
// so that we know its Duration. This will happen on MediaSource.OpenOperationCompleted.
item.Source.OpenOperationCompleted += (sender, args) =>
{
var attachedItem = MediaPlaybackItem.FindFromMediaSource(sender);
if (sender.Duration.HasValue)
{
// For live streaming, the duration will be TimeSpan.MaxValue, which won't work for this scenario,
// so we'll assume the total duration is 2 minutes for the purpose of ad insertion.
bool isLiveMediaSource = item.Source.AdaptiveMediaSource != null ? item.Source.AdaptiveMediaSource.IsLive : false;
long sourceDurationTicks = isLiveMediaSource ? TimeSpan.FromMinutes(2).Ticks : sender.Duration.Value.Ticks;
var positionAt10PercentOfMainContent = TimeSpan.FromTicks(sourceDurationTicks / 10);
// If the content is live, then the ad break replaces the streaming content.
// If the content is not live, then the content pauses for the ad, and then resumes
// after the ad is complete.
MediaBreakInsertionMethod insertionMethod = isLiveMediaSource ? MediaBreakInsertionMethod.Replace : MediaBreakInsertionMethod.Interrupt;
var midRollBreak = new MediaBreak(insertionMethod, positionAt10PercentOfMainContent);
midRollBreak.PlaybackList.Items.Add(ad2);
midRollBreak.PlaybackList.Items.Add(ad1);
attachedItem.BreakSchedule.InsertMidrollBreak(midRollBreak);
Log($"Added MidRoll at {positionAt10PercentOfMainContent}");
}
};
// Create a PostrollBreak:
// Note: for Live content, it will only play once the presentation transitions to VOD.
if (item.BreakSchedule.PostrollBreak == null)
{
item.BreakSchedule.PostrollBreak = new MediaBreak(MediaBreakInsertionMethod.Interrupt);
}
// Add the ads to the PostrollBreak in the order you want them played
item.BreakSchedule.PostrollBreak.PlaybackList.Items.Add(ad3);
}
}
